Artist&#39;s working paper



Patented Jan. 28, 1941 stares PATENT orrics ARTISTS WORKING PAPER JosephF. Murphy, West Roxbury, Mass.

No Drawing. Application December 2'7, 1939, Serial No. 311,156

4 Claims. 41-47) My invention relates to the art of printing pleted hiswork, the shaded sheet is photographed and consists in a novel artistsworking layout through a half tone screen so that the negapaper andmethod for producing it. tive thus produced contains both the shading Inthe preparation of advertisements for printand the screening. A 60 meshscreen may be 5 ing it often happens that the artist desires shaded usedwhere the product is to be employed in backgrounds ranging from black tolight gray. newspaper work. Finer screens are used for 5 To obtain abackground other than black, the magazines and more expensivepublications. following method has been heretofore employed. From thescreened negative it is possible to The artist first paints a blackpatch on cardmake positives on sensitized drawing paper. board, thepatch having the area of the desired These positives then becomearticles of commerce 10 background. Lettering or designs are then suandcan be advantageously employed in making perposed or stripped in on theblack background up advertisements. The screening step results on thecardboard. Subsequently a sheet of in a positive having a plurality offine, reticutransparent material having a. fine screen on lated blacklines, the interstices being white, or its outer surface is placed overthe background neutral, according to the color of the paper upon 15 andtaped down along its edges to the cardboard. which the print is made.The lines on the This screened film is known in the trade as Ben printsare, of course, in sufficiently close prox- Day film and is supplied invarious shades. The imity to one another to give the shaded half-toneBen Day film when placed over the black patch effect desired.

on the cardboard produces a. gray which is light A cheaper and morepractical method is to 20 or dark according to the shade of Ben Day makea metal plate from the screened negative film used. The layout thusformed is photoand to print positives from the metal plate on graphed toproduce a negative from which a drawing paper which has, in this case,not been metal plate may be made for letter press or sensitized. Thesheets of drawing paper so photograph offset printing. printed containthe screened shading. 25

The foregoing method of composing a layout The use of the artistsWorking paper produced and making a half tone negative is complicated,by my novel process renders the making of an slow and expensive, and itis one important advertisement much cheaper than it has been object ofmy invention to eliminate the necessity heretofore, in view of the factthat the necessity for painting a background upon the paper from formaking a half tone negative of the layout is 30 which the layout ismade. eliminated. The person making up the advertise- A further objectof my invention is to render ments can work directly on my novel paperand it unnecessary for the artist to use a half tone either draw thelettering or design which is to or Ben Day film screen in makingphoteappear on the background or can strip in type graphic negative ofthe layout. which is pasted down on the shaded and screened 35 Brieflyspeaking, my invention consists in a background of my paper. process ofpreparing drawing paper by means Although many different kinds of papermay of which an artist engaged in making up an illusbe used, I prefer touse artists paper of high tration or advertisement is provided from thequality, such as No. 1 gloss paper upon which start with a shaded andscreened background, to photograph or print the screened shade. The 40the background being printed in the form of fine artists layout paperthus produced will lie fiat, reticulated lines on paper which can bedrawn can be drawn or painted on, and permits cleanupon, painted,cleaned, or erased. The paper ing .and erasing without smudging orotherwise produced by the practice of my novel process is damaging thepaper or the screened background. also included within the scope of myinvention. Having thus described my invention what I 45 To produce thepaper of my invention, an artist claim as new and desire to secure byLetters Patfirst paints in water color upon a sheet of cardent of theUnited States is, board or other fairly stiff material the proper 1. Asan article of commerce, artists working shade of gray or black which isdesired. The layout paper in sheet form for drawing upon shading can beof uniform color or may contain having one surface thereof provided withreticu- 50 zones of different shades, sharply demarcated or lated linessufiiciently closely spaced to give a gradually blending into oneanother. Furtherhalf-tone shading effect on said surface. more theartist may paint background designs, 2. As an article of commerce,artists working such as stars, circles, etc., in contrasting shadespaper in sheet form for drawing upon having 5 of gray or black. When theartist has comone of its surfaces provided with a half-tone shadingformed of closely spaced reticulated lines.

3. As an article of commerce, artist's Working paper in sheet form fordrawing upon having one of its surfaces provided with a gray shadingcomposed of black areas substantially uniformly distributed and spacedclosely enough to give a half-tone effect.

4. As an article of commerce, a substantially opaque sheet of artist'spaper of a grade and quality for being drawn upon with pencil or pen andhaving one surface thereof provided with reticulated lines sufficientlyclosely spaced to 5 give a half-tone effect on said surface.

JOSEPH F. MURPHY.

